RAID Scaling Charts, Part 1

Benchmark Results

Access Time

While a single HD321KJ has an average access time of over 14 ms, we achieved shorter access times due to the fact the only 80 GB out of the available 320 GB was used. However, protocol overhead and head positioning time were clearly significant, as the access time increases with the drive count. A maximum of 30 ms cannot be called quick anymore, but I/O performance isn’t affected by the poor average access time.

Interface Bandwidth